Liberty Ross Speaks on Kristen Stewart Affair: It Was the Worst!

But while the press continues to follow the every move of these young superstars, one person involved in the sordid mess has been forgotten about… until now.

Liberty Ross is featured in the December issue of Vanity Fair, and she's opening up in detail about the affair between her husband and Stewart for the first time.

"It was horrible," Ross tells the magazine. "It was really the worst, really the worst."

In July of 2012, Rupert Sanders was snapped kissing Stewart, a photo that took the Internet by storm and led to Kristen actually admitting that she strayed from her boyfriend.

She and Robert tried to reconcile, Rupert and Liberty tried to do the same, but neither relationship worked out in the end. Sanders and Ross are now divorced.

"I have no words to describe what we went through," Liberty says. "But I think, for me, something always has to completely die for there to be a rebirth. And, for me, I feel like I'm going through a rebirth."

The day after images of his fling went public, Sanders issued a public apology to his wife of 11 years, along with their two children.

"I love them with all my heart," he said at the time. "I am praying that we can get through this together."

However, Ross tells Vanity Fair that she knew all along she could never really give her husband another shot.

"I'm not a quitter," she says. "I've done everything I could to be the perfect wife and mother and really support my husban. But I just didn't have any more to give, you know?"

Ross also says she didn't have the perfect marriage ("I had times when I felt very lonely, very disconnected from Rupert. We'd lost our real connection.") even prior to the affair, but she's also been able to forgive Sanders and take a step back from it all.

"We were together for 16 years, and that in itself is really beautiful," she says. "And we've created two exceptional lives together."

It's true: the former spouses are parents to daughter Skyla, 7, and son Tennyson, 5.